One of BART's two largest unions ratified a revised $67 million, four-year labor contract that took nine months and two strikes to settle.

Members of Amalgamated Transit Union Local 1555 endorsed the contract Friday, which has already been ratified by the elected BART board. The contract was supported by 73 percent of members who voted.

The only outstanding vote is that of the Service Employees International Union Local 1021, whose members are scheduled to vote Jan. 13.

Both unions had already ratified a deal last November, but the BART board rejected the contract after staff discovered a costly family leave provision had been mistakenly included.

Under protest, the unions eventually agreed to remove the disputed provision in exchange for low-cost concessions on overtime, a tax benefit and other items.

The new contract includes retroactive pay hikes to July 1, but the 2,375 workers in the two unions will also have to pay a share of their pension costs for the first time.

After subtracting the new retirement contributions and slight health care premium increases, employees will see a 13 percent net pay increase by the end of the contract. They are also eligible for $500 bonuses if the agency exceeds ridership goals.